Memory question

[Sena Ramsey]

My Intel processor has 533 FSB, so naturally I have 2 sticks of DDR 333 ram
installed.

My mobo says in order to install DDR400, I must have 800 FSB. I would like
to install DDR400 and mix it with the DDR 333 I already have.

Anyone have any experience in mixing ram or if it's possible?

 

[Jim Macklin]

You can install RAM as supported by the motherboard, but the
ratings such as DDR400 or DDR333 don't mean the RAM actually
runs at that speed, it just means that the RAM is certified
to be error free at that speed. If you put DDR400 on your
mobo, it will run with the 533 FSB and DDR333 speed.

To get DDR 400 speed you need to buy a new mobo and CPU that
will run at FSB800.

If you installed DDR333 in a system with a FSB800 it might
run or it would probably fail since it would be over-clocked
135%.


--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.


| My Intel processor has 533 FSB, so naturally I have 2
sticks of DDR 333 ram
| installed.
|
| My mobo says in order to install DDR400, I must have 800
FSB. I would like
| to install DDR400 and mix it with the DDR 333 I already
have.
|
| Anyone have any experience in mixing ram or if it's
possible?
|
|
|
|
|

 

[Yves Leclerc]

Whenever installing RAM onto any motherboard (any speed), you should never
mix the RAM speeds. If you use DDR333, do not add DDR400. If you want to
use DDR400, replace any/all DDR333 RAM.

 

[Guest]

Hate to take a different question, but this was the only thread dealing
directly with installing memory.

Here's the situation: I have a PentiumIII, and had one stick of 128 memory
in it. I went to get a 2nd memory stick (still 128) to install, and the stick
says that it's "PC100/PC133 Compatible." However, when I booted up my
computer, it still is saying that I have only 128MB memory, instead of the
(now) installed 256MB.

Is there something that I'm missing? Do I need to reconfigure my computer
somehow so it recognizes all of the installed memory?

Thanks.
Sean

 

[Mike Hall \(MS-MVP\)]

Sean

It means that the stick is not working or that it doesn't match what is
installed already.. try installing the new stick on its own.. if it works,
then the problem is that the sticks don't match..

 

[JustMe]

No reconfiguration necessary, plug it in and it should work. Obviously you
have a problem with the new one.

Hate to take a different question, but this was the only thread dealing
directly with installing memory.

Here's the situation: I have a PentiumIII, and had one stick of 128 memory
in it. I went to get a 2nd memory stick (still 128) to install, and the
stick
says that it's "PC100/PC133 Compatible." However, when I booted up my
computer, it still is saying that I have only 128MB memory, instead of the
(now) installed 256MB.

Is there something that I'm missing? Do I need to reconfigure my computer
somehow so it recognizes all of the installed memory?

Thanks.
Sean

 

[LawrenceSystems]

Take them both out and then change slots( put the old one in the different
slot and the new one in the old slot).
Now reboot and see if that helps.